AGM battery question for the experts.
I will readily admit, I’m not a battery expert, let alone AGM batteries. I have a (to me) real puzzler, maybe it’s just chemistry I don’t understand. I have a ‘powersports’ battery, an ETX20L if i...
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JaxDad wrote:
I will readily admit, I’m not a battery expert, let alone AGM batteries.
I have a (to me) real puzzler, maybe it’s just chemistry I don’t understand. I have a ‘powersports’ battery, an ETX20L if it maters, that reads 12.5 volts at rest but drops to 0 when any load is applied.
The really strange (to me) part is that once the load is removed the voltage rebounds to 12.5 volts.
Once I try to charge it though it won’t take a charge since it’s already ‘charged’ at 12.5 volts.
What am I missing here?
Thanks in advance.
Not missing anything, its dead.
Battery has developed a high internal resistance for some reason, no load will read some voltage, add load and nada.
Typically not recoverable and especially since it is AGM where some tricks used on FLA sometimes breathes some life back in AGMs othe the other hand like their cousin Gelcells don't take kindly to abuse..
Just replace and go.
